M's rockin' Friday night at Jingle Ball!

M editors Lauren and Brittany here! We are so excited to tell you all about our night backstage at Jingle Ball over the weekend. It's was amazing! Everywhere we turned we saw our FAVE celebs from Adam Lambert to Miranda Cosgrove to Justin Bieber -- we had a blast! Check out the pics and clips below that we personally made sure we got just for you!

M editors Lauren (left) and Brittany (right).

Peter Facinelli (Carlisle Cullen in The Twilight Saga) tells us what to look forward to in Eclipse!

M editor Brittany with Adam Lambert! Psst! He was so sweet to us!

And here's Brittany with American Idol winner, Kris Allen!

Miranda Cosgrove couldn't wait to say hello to us and pose with M mag!

Justin Bieber answered our questions in the Press Room and even gave us a quick hug on the way to the H & M gift lounge!

Orianthi was flattered when we told her we love her song "According to You" and was excited to pose for a pic with M editor, Lauren!

When we asked Allison Iraheta for a photo with the mag, she answered, "Sure, dude!" and was ready to strike a pose!

Justin Bieber brought a lucky girl on stage and serenaded her in front the whole stadium! He even gave her a bouquet of beautiful roses! Aww!

Last but definitely not least, Taylor Swift ended the show with a rockin' performance!

Let's dish:
-Who do you most wish could've met at Jingle Ball? What performance would've been your fave?